Added ability to plot well tracks in mulgrid layer_plot()
Added well_names parameter to mulgrid layer_plot(), and fixed a bug for the case of pltting wells on a surface plot
Changed layer_plot() labelling of wells to be at bottom of well rather than wellhead (better for deviated wells coming from one pad)
Updated documentation for altered layer_plot() well labelling
Added welllinewidth parameter to layer_plot()
Changed parameter show_outside_wells in layer_plot() to hide_wells_outside- to enable more consistent use with similar parameter in slice_plot()
Altered layer_plot() so that wells are drawn with dotted lines except where they pass through the layer; updated documentation, and cleaned up layout of layer_plot()
Added ability to plot wells in slice_plot()- under development
Added polyline_polygon_intersections() function
Added point_line_distance() and polyline_line_distance() functions
Completed display of wells on slice_plot()
Added option to label wells at wellhead rather than bottom in layer_plot() and slice_plot()
Added layer_plot_wells() method to mulgrid class and used it in layer_plot()
Added slice_plot_wells() method to mulgrid class and used it in slice_plot()
Update user guide date